a = [1, 11, 21, 2, 12, 22, 3, 13, 23, 4, 14, 24, 5, 15, 25, 6, 16, 26, 7, 17, 27, 8, 18, 28, 9, 19, 29, 10, 110, 210]
a = sorted(a)
print(a)